The three activation/desactivation options of the page :
chrome://adblockplus/content/ui/firstRun.html (with Firefox)
are not disponible after installation in ABP menu or Extensions ABP options (under about:addons).
I must use directly the above address to modify these options. I think this is neither logical nor handy, except if I did not see another possibility.
I presume this lack is not specific to Firefox.
Is there a difficulty to modify this or a reason not to do ?
P-S : sorry for my approximative english, I am french.